In a lab, a substance was heated by 2c each hour for 6 hours. What was the total change in temperature?

Answer:

20

Step-by-step explanation:

[tex]\frac{35n}{35} =\frac{700}{35} \\[/tex]

multiply both sides by 35

[tex]35*\frac{35n}{35} = 700 * 35\\35n = 700[/tex]

divide both sides by 35

[tex]n = 20[/tex]

Answer:

N = 20

Step-by-step explanation:

Move all terms to the left

35n/35-(700/35)=0

Add all of the numbers together, and all of the variables

35n/35-20=0

Multiply all of the terms by the denominator

35n-20*35=0

Add all of the numbers together, and all of the variables

35n-700=0

Move all of the terms containing N to the left, all other terms to the right

35n=700

n=700/35

n=20

Answer:

C. Multiply both sides by 4.

Step-by-step explanation:

You are isolating the variable, g, and so you will do the opposite of all operations that occurs with the variable, g.

Note the equal sign, what you do to one side, you would do to the other. Isolate the variable, g, by multiplying 4 to both sides of the equation:

[tex]\frac{g}{4} * 4 = 24 * 4[/tex]

[tex]g = 24 * 4[/tex]

[tex]g = 96[/tex]

~

Answer:

37⁰

Step-by-step explanation:

Angles 3 and 1 are vertical angles. Therefore it is congruent.

Step-by-step explanation:

Her life term earnings will be 4049344.00 dollars

Answer:

20

Step-by-step explanation:

We can put the rate of hours a week as 5. Since in this case hours will substitute for distance, and distance=speed*time, then the amount of hours will be 5*4=20.

edit: mistyped

Answer:

20 hours

Step-by-step explanation:

Given the following question:

5 hours per week
How many hours does she ride in 4 weeks?

We know the amount of hours Wanda rides per week, so this is a simple multiplication problem.

[tex]5h\times4w[/tex]
[tex]5\times4=20[/tex]
[tex]=20[/tex]

Wanda rides her bike for "20 hours" in 4 weeks.

Hope this helps.

Answer:

t = f-v/a (First choice)

Explanation:

step by step:

1) f = v + at

2) f - v = v - v + at

3) f - v = at

4) f - v / a = at / a

5) f - v / a = t

6) t = f - v / a

Answer:

vanilla=$5 and fruit juice=$3

Step-by-step explanation:

let $x and $y denote the cost of vanilla thickshake and fruit juice respectively.

Now,

$x=$y+2$ (Given)-----(i)

3×$x + 5×$y =30

3×($y+$2)+5×$y=30 (From equation i )

3×$y +$6 + 5×$y = 30

8×$y + $6 = $30

8×$y= $24

.: $y =$3

Then,

From i

$x =$y+$2

=$3+$2

#$5

Answer:

the answer would be A a pure sound

Answer:

I think it is A pure Sound

Step-by-step explanation:

Answer:

53.3333333%

Step-by-step explanation:

Given the following question:

14 desktops
16 laptops
14 + 16 = 30

To find the answer use the formula to calculate percentages.

[tex]\frac{16}{30}\times100[/tex]
[tex]16\div30=0.533333333[/tex]
[tex]0.533333333\times100=53.3333333[/tex]
[tex]=53.3333333[/tex]

16 of 30 as a percentage is "53.3333333%."

Hope this helps.

Answer:

Id say 1st and 3rd answer.

Step-by-step explanation:

Answer:

First Third and Fourth Statements are true.

Step-by-step explanation:

Answer:ok so u have to help

Step-by-step explanation:

Answer:

18/5

Step-by-step explanation:

it's just slope formula

(14- -4)/(9-4)

(14+4)/5

18/5

$11.80

Step-by-step explanation:

The approximate yearly interest rate is 1.02%

Given the expression  that represents the interest earned on a money given as (1.0045)^4t

In order to calculate the approximate yearly percent, we will substitute t = 1 into the expression as shown:

f(t) = (1.0045)^4t

f(1) = (1.0045)^4(1)

f(1) = (1.0045)^4

f(1) = 1.018

Hence the approximate yearly interest rate is 1.02%

Learn more on interest rate here: https://brainly.com/question/25545513

Answer:

2

Step-by-step explanation:

[tex]\frac{a+b+c}3}= 4\\[/tex]

multiply both sides by 3

a+b+c=12

substitute the values we have

1+9+c=12

10+c=12

-10     -10

c=2

so the third number is 2

hope this helped you !

Answer:

4 inches

Step-by-step explanation:

[tex]24 = \frac{1}{2} (b)(3b) \\ \\ \implies \: 24(2) = 3 {b}^{2} \\ \\ \implies \: 48 = 3 {b}^{2} \\ \\ \implies \: \frac{48}{3} = {b}^{2} \\ \\ \implies \: {b}^{2} = 16 \\ \\ \implies \: {b} = \pm\sqrt{16} \\ \\ \implies \: {b} = \pm \: 4 \\ \because \: b \: is \: side \: length \\ so \: its \: value \: cant \: be \: negative. \\ \implies \: b = 4 \: in[/tex]

Answer:

False, but depends on…

Step-by-step explanation:

If you are dealing with x and y-intercepts, or slopes, then no. The answers wouldn't be in the given format. If you're looking for a coincidence, then it could be a solution. Hope this helps!

Answer:

$111.5699. Round to hundredths $111.57

Step-by-step explanation:

First identify the %

20% =.20 20/100= .20

3.5% = .035 3.5/100= .035

Then Find the tax rate and tip

Tax Rate .035 × 90.34

= $3.1619 (tax rate)

Tip. is .20× 90.34

= $18.068 (tip)

Final Add all it up tax rate+ tip + original price

$90.34. Don't forget to line up your demicals

$3.1619. or use a calculator

+ $18.068

Total = $111.5699

round to the nearest hundredth

$111.57 is your total

Answer:

x=7°

Step-by-step explanation:

The figure is a triangle.

1. Triangles's angles add up to 180°.

2. We know that 1 angle measures 104°, so the remaining 2 angles add up to 76°. It is an isosceles triangle, so both of the remaining 2 angles have equal measures.

3. 76÷2=38°.

4. 9x-25°=38°

5. 63°-25°=38°

6. 9x=63°

7. x=7°

Step by step explanation above. Hope it is correct!

Answer: A

Step-by-step explanation:

Answer:

From the graph and data points, you can observe that Group B has a HIGHER range and has a greater variability. so it's NOT 1. 4. or 3. THEREFORE it's 2.

Explanation:

You start out by finding the mean (finding the sum of the data values and then dividing the sum by the number of data values)

and subtracting the first plot by the last in each graph.

(at least I think)

I've been through this topic. (it was a long time ago since I'm now in highschool so this might be different now as the grading curriculum has changed)

Answer:

goofy

Step-by-step explanation:

Answer:

A Because probability cannot be of - sign it ranges from o-1

Answer:

60

Step-by-step explanation:

all the outer angles have to add up to 360

Answer:

Therefore, they can buy

6.36 bats and 12.72gloves

Step-by-step explanation:

Let us represent:

The number of bats purchased = b

The number of gloves purchased = g

We are told in the question that:

The number of bats they will purchase is half the number of gloves

b = 1/2g

b = g/2

g = 2b

The teams plan to purchase bats that cost $60 each and gloves that cost $25 each. they will purchase. If they have $700, how many of each can they buy?

Hence:

$60 × b + $25 × g = $700

= 60b + 25g = 700

We substitute 2b for g

60b + 25(2b) = 700

60b + 50b = 700

110b = 700

b = 700/110

b = 6.3636363636

b = 6.36 bats

Therefore, the number of bats they can buy = 6.36 bats

Remember:

g = 2b

b = 6.36

Hence,

g = 2 × 6.36

g =12.72

Therefore, the number of gloves = 12.72 gloves

Answer:

Deductive reasoning

Step-by-step explanation:

Answer:

gradient = 1

Step-by-step explanation:

calculate the gradient using the slope formula

m = [tex]\frac{y_{2}-y_{1} }{x_{2}-x_{1} }[/tex]

with (x₁, y₁ ) = (0, - 2) and (x₂, y₂ ) = (2, 0) ← 2 points on the line

m = [tex]\frac{0-(-2)}{2-0}[/tex] = [tex]\frac{0+2}{2}[/tex] = [tex]\frac{2}{2}[/tex] = 1

[tex]\underline{\underline{\large\bf{Solution:-}}}\\[/tex]

[tex]\longrightarrow[/tex]By observing the graph of the line , we can observes that it intersects x- axis at 2 and y -axis at -2 i.e., it passes through (2,0) and (0,-2) respectively.

[tex]\textsf{The gradient of a line passing through two}[/tex][tex]\sf{given \: points \:(x_1,y_1) \:and \:(x_2,y_2) \: is \:given \: by - }[/tex]

[tex]\green{ \underline { \boxed{ \sf{ Gradient =\frac{y_2-y_1}{x_2-x_1}}}}}[/tex]

Here,

Putting Values:-

[tex]\begin{gathered}\\\implies\quad \bf Gradient =\frac{-2-0}{0-2} \\\end{gathered} [/tex]

[tex]\begin{gathered}\\\implies\quad \bf \frac{\cancel{-2}}{\cancel{-2}} \\\end{gathered} [/tex]

[tex]\begin{gathered}\\\implies\quad \bf 1 \\\end{gathered} [/tex]

>>The gradient of the graph shown is 1

Answer:

0.6%

Step-by-step explanation:

Percent Error = the absolute value of (actual value observed-expected value)/(expected value) x100%

(17.8-17.9)/(17.9) = -0.006

Absolute value is 0.006

0.006 times 100% equals 0.6%

The percent error of the measurement in the length is 10%.

Given is that Owen measured a line to be 17.9 inches long. The actual length of the line is 17.8 inches.

We can calculate the percentage error as -

%e = {(A.V. - E.V.)/(A.V.)} x 100

%e = (17.9 - 17.8) x 100

%e = 0.1 x 100

%e = 10%

Therefore, the percent error of the measurement in the length is 10%.

To solve more questions on functions, expressions and polynomials, visit the link below -

brainly.com/question/17421223

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